2111140363420 has 288 divisors, whose sum is σ = 5313696353280. Its totient is φ = 701075865600.

The previous prime is 2111140363411. The next prime is 2111140363439. The reversal of 2111140363420 is 243630411112.

It is a super-2 number, since 2×2111140363420² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 622569925 + ... + 622573315.

It is an arithmetic number, because the mean of its divisors is an integer number (18450334560).

Almost surely, 2^{2111140363420} is an apocalyptic number.

2111140363420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111140363420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2656848176640).

2111140363420 is an abundant number, since it is smaller than the sum of its proper divisors (3202555989860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111140363420 is a wasteful number, since it uses less digits than its factorization.

2111140363420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885 (or 3872 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 2111140363420 its reverse (243630411112), we get a palindrome (2354770774532).

The spelling of 2111140363420 in words is "two trillion, one hundred eleven billion, one hundred forty million, three hundred sixty-three thousand, four hundred twenty".